Candied Pecans Toss pecans in olive oil, stirring until coated and place on a flat baking pan. Roast at 300 degrees for 15 to 20 minutes stirring frequently. Remove from oven and let cool. Add sugar, salt and water to medium sauce pan. Cook the mixture over medium heat until sugar is dissolved. Cook for another 2 minutes and remove from heat. Add vanilla and pecans and stir until all pecans are coated. Place pecans on wax paper and use a fork or knife to separate. Let cool.